December weather forecastKushiro, Japan

December

Weather in December

As December approaches, Kushiro embraces the winter season, characterized by snow-laden landscapes and cold temperatures that could drop to a chilling -4.3°C (24.3°F) by nighttime. The city layers itself in white, with 63mm (2.48") of snowfall covering its surfaces. Despite the cold winter months, the holiday season breathes life into the city, with stunning light decorations and spirited festivities. As the year ends, Kushiro serves as a perfect winter getaway, painting a picture straight out of a Christmas postcard.

Temperature

The transition into December in Kushiro involves a decrease in the average high-temperature, falling from a frosty 7.2°C (45°F) in November to a cold 0.5°C (32.9°F). December records a small disparity from daytime temperatures, marking an average low-temperature of -4.3°C (24.3°F) in Kushiro.

Humidity

April, November and December, with an average relative humidity of 76%, are the least humid months.

Rainfall

In December, in Kushiro, the rain falls for 4.6 days. Throughout December, 33mm (1.3") of precipitation is accumulated. Throughout the year, in Kushiro, there are 105.6 rainfall days, and 625mm (24.61") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Kushiro, in December, during 4.9 snowfall days, 63mm (2.48") of snow is typically accumulated. In Kushiro, during the entire year, snow falls for 25 days and aggregates up to 314mm (12.36") of snow.

Sea temperature

In Kushiro, in December, the average water temperature is 5.4°C (41.7°F).
Note: Without suitable protection, venturing into 5.4°C (41.7°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 06:33 and sunset at 15:49. On the last day of December, in Kushiro, sunrise is at 06:53 and sunset at 15:57 JST.

Sunshine

In December, the average sunshine in Kushiro, Japan, is 5.6h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 2 in December transforms into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

In December, the average high-temperature and low-temperature in Kushiro are 0.5°C (32.9°F) and -4.3°C (24.3°F) respectively.

April, November and December, with an average relative humidity of 76%, are the least humid months in Kushiro.

In Kushiro, the average relative humidity in December is 76%.

In December, in Kushiro, Japan, the rain falls for 4.6 days. Throughout December, 33mm (1.3") of precipitation is accumulated.

In Kushiro, Japan, in December, during 4.9 snowfall days, 63mm (2.48") of snow is typically accumulated.

In December, the average sea temperature is 5.4°C (41.7°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

With an average of 9h and 6min of daylight, December has the shortest days of the year in Kushiro, Japan.

The average day length in December is 9h and 5min.

In December, on the first day of the month, sunrise is at 06:33 and sunset at 15:49. On the last day of the month, in Kushiro, sunrise is at 06:53 and sunset at 15:57 JST.

The average sunshine duration in December in Kushiro, Japan, is 5.6h.

The months with the lowest UV index in Kushiro are January through March, November and December, with an average maximum UV index of 2.

In December, the average daily maximum UV index in Kushiro is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kushiro, Japan

  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (-2.4°C).

  • Average low temperature in December: -4.3°C

The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is February (-8.4°C).

Average pressure in December
Kushiro, Japan

  • Average pressure in December: 1011.6mbar

The month with the highest atmospheric pressure is October (1015.6mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).

Average wind speed in December
Kushiro, Japan

  • Average wind speed in December: 14.8km/h

The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is July (8.5km/h).

Average humidity in December
Kushiro, Japan

  • Average humidity in December: 76%

The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April, November and December (76%).

Average rainfall in December
Kushiro, Japan

  • Average rainfall in December: 33mm

The wettest month (with the highest rainfall) is August (109mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in December
Kushiro, Japan

  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in December
Kushiro, Japan

  • Average snowfall in December: 63mm

The month with the highest snowfall is February (77mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December
Kushiro, Japan

  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is March (6.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in December
Kushiro, Japan

  • Average sea temperature in December: 5.4°C

The best month for swimming (with the highest average sea temperature) is August (18.1°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).

Average daylight in December /
Average sunshine in December
Kushiro, Japan

  • Average daylight in December: 9h and 6min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 5h and 36min

The months with the most sunshine are April and May (Average sunshine: 8h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Kushiro, Japan

  • Average sunshine days in December: 23 days

The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (13.3 days).

Average UV index in December
Kushiro, Japan

  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Kushiro, Japan

  • Average cloud cover in December: 39

The month with the most cloud cover is July (Cloud cover 62).
The months with the least cloud cover are October and November (Cloud cover 37).

Average visibility in December
Kushiro, Japan

  • Average visibility in December: 10km

The month with the highest visibility is December (10km).
The months with the lowest visibility are June, July and August (7km).